Carolina Panthers v Pittsburgh Steelers

PITTSBURGH, PA - AUGUST 28: National Football League referee Tony Corrente #99 looks at a television monitor inside the instant replay booth used to review challenged plays before the start of a preseason game between the Carolina Panthers and Pittsburgh Steelers at Heinz Field on August 28, 2014 in Pittsburgh, Pennsylvania. The Panthers defeated the Steelers 10-0. (Photo by George Gojkovich/Getty Images)